As an innovative liquid level detection device, the external liquid level switch stands out in the field of industrial automation control with its unique design concept and advanced technological application, becoming an important tool for ensuring production safety and improving efficiency. This article will delve into the core characteristics of external liquid level switches and demonstrate their extensive application value in different industrial scenarios.

Non contact measurement ensures safety and worry free

One of the significant features of the external liquid level switch is its non-contact measurement method. This device uses a probe installed on the outer wall of the container and utilizes ultrasonic or variable frequency ultrasonic technology to penetrate the container wall, achieving precise detection of the internal liquid level. This design fundamentally avoids the safety hazards caused by traditional contact type liquid level switches due to medium corrosion, pollution, or sealing failure, and is particularly suitable for liquid level monitoring of hazardous media such as toxic and harmful, flammable and explosive, high pressure and high temperature, providing a safer working environment for operators.

Strong adaptability and wide application

The external liquid level switch has demonstrated strong environmental adaptability and medium compatibility. It is not affected by factors such as medium density, dielectric constant, conductivity, reflection coefficient, pressure, temperature, etc., and can operate stably in various complex working conditions. Whether it is a metal or non-metal container, whether it is a low-temperature storage tank or a high-temperature reaction vessel, the external liquid level switch can provide accurate and reliable liquid level information. In addition, its maximum penetrability70mmThe thickness of the container wall has further expanded its application range, meeting the testing needs of different industries and equipment.

Easy to install and maintain

The installation process of the external liquid level switch is extremely simple, without the need for opening or hot work on the container, greatly reducing installation costs and risks. Multiple installation methods such as magnetic suction, bundling, and welding are available for selection, flexibly adapting to installation needs in different scenarios. At the same time, the device supports online installation and debugging, which does not affect normal production, and daily maintenance does not require downtime, improving production efficiency. The built-in fault self diagnosis module can also monitor the status of the probe in real time and transmit alarm signals remotely, facilitating timely troubleshooting and ensuring long-term stable operation of the equipment.

Accurate, reliable, and responsive

The external liquid level switch has high-precision measurement capability, and the measurement accuracy can reach±2mmIt can meet the extremely high requirements for liquid level control in application scenarios. Its fast response time（<1The system ensures timely capture and accurate feedback of liquid level changes, effectively preventing safety accidents such as overflow from high liquid levels or low altitude rotation. In key industries such as petrochemicals, pharmaceutical manufacturing, and water treatment, external level switches have become an important part of ensuring the safe operation of equipment.